This article in detail discussed the hardware establishment and the software design of the engine controlled and tested system based on the AC dynamometer.

本文详细论述了基于交流测功机的发动机测控系统的硬件建立与软件设计。

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Aiming at the speed characteristics test, which is one of important test items of engine test, this paper proposes studies of ac electrical dynamometer and its control system.

本文以发动机测试中一项重要的特性测试项目——速度特性测试为目的，重点研究了交流电力测功机及其控制系统设计。

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AC electrical dynamometer is a key equipment of engine power-test system, whose load is mainly regulated by the excitation control system of electrical dynamometer.

交流电力测功机是发动机测功系统的重要设备，励磁控制系统是测功系统负载调节的主要控制装置。

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